Sight for firearms.



No s meso, PATENTED MAR. 19, 1907.

J. WINDRIDGE & G. s. WILGOX.

SIGHT FOR FIREARMS.

APPLICATION FILED JAN. 16, 1907.

I THE mamas PETERS co., wasumcrmv, o. c

UNITED STATES ATENT oEEroE.

JAMES WINDRIDGE AND GEORGE S. WILCOX, OF MIDDLEFIELD, CONNECTI- CUT,ASSIGNORS TO THE LYMAN GUN SIGHT CORPORATION, OF MIDDLE FIELD,CONNECTICUT, A CORPORATION OF CONNECTICUT.

SIGHT FOR FIREARMS.

Specification of Letters Patent.

Patented March 19, 1907.

Application filed January 16,1907. Serial No. 352,625.

"and GEORGE S. WILooX, citizens of the United States, and residents ofMiddlefield, in the county of Middlesex and State of Connecticut, haveinvented certain new and useful Improvements in Sights for Firearms, ofwhich the following is a full, clear, and eXact specification.

Our invention relates to that class of rear sights for firearms in whichthe sight-carrying part comprises a vertical slide mounted in a guidewayor base at the side of the frame and adapted to be adjustably secured inits seat by some form of clamping mechanism embodying a screw or studinserted in the base and projecting through a slot in the slide. Theremoval of the slide in this construction involves the displacement andderangement of adjustment of the clamping mechanism, and it is theelimination of this objectionable feature that constitutes the object ofour improvement.

The invention consists in the novelcombination with the slide of aremovable stop for closing or barring the lower end of the screwslot andwhich is adapted when unlocked to permit the ready detachment of theslide from the base.

The improvement further resides in the novel construction andarrangement of parts, as hereinafterv more fully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation of a gun-sight of the class describedembodying our improved construction. Fig. 2 is a rear elevation of thesame. Fig. 3 is a vertical cross-section through Fig. 1 on the line X Xviewed from the rear or from the same direction as Fig. 2. Fig. 4 is aside elevation of the base. Fig. 5 is a side elevation of the slidedetached and the removable stop unlocked. Fig. 6 is a horizontalcross-section on the line y y, Fig. 1. Fig. 7 is a crosssection similarto Fig. 6, but showing the removable stop in the operation of beingunlocked. Fig. 8 is a horizontal cross-section on the line :1: 00, Figs.3 and 4.

In the above description of the figures the terms side and rearelevation and cross-section relate to the position of the sight whenmounted on a firearm instead of to the proportions of the sight itself.

Referring to the drawings, A designates the sight-base, which isdesignated for attachment to the side of the frame of the firearm bymeans of suitable holding-screws and for this purpose is provided withthe screwholes 1) near its lower edge, having the counterbored seats dtoreceive the heads of the holding-screws. Parallelflanges e at theupright edges of the base provide a vertical groove 0r guideway f on itsouter face, in which is fitted the sight-carrying part or slide G,having the horizontal arm h overhanging the gun-barrel and supportingthe peep-sight h. Near the upper edge of the base is a screw-threadedperforation m, in which is screwed a stud it, having the enlargedexternal screwthreaded part i, forming a shoulder which is tightlyscrewed against the surface of the base to hold the stud in place.

The outer end of the stud is slotted, as shown,

for the application of a screw-driver to screw the part to place, asusual with screw-heads.

The slide is formed with a slot t parallel with its edges, through whichthe part i of the screw-stud projects to receive a nut 41., by means ofwhich the slide is clamped in its seat. On the clamping-nut is a leverto, which may be secured in any position thereon by means of set-screwso to so adjust the lever that it shall always occupy a particularposition when the sight is clamped in place, which is that shown inFig. 1. A screw-stop r in the horizontal arm of the slide, adapted tobear upon the upper edge of the base, is provided for adjusting thesight at pointblank, in which position the stud n will occupy the upperend of the slot. The inter ception of the stud by the lower end of theslot limits the upward movement or elevation of the slide and preventsits disengagement from the stud.

With the construction so far described, which is substantially thathitherto em ployed, the removal of the slide from the base necessitatesthe removal of the clamping mechanism, consistin of the nut a, lever a,and stud n. Then when the slide is returned to its seat the replacementand careful readjustment of the clamping mechanism will be renderednecessary. The improvelimbs are cut away at the ends on their outersides, as shown in Fig. 5, to provide a tongue t on the rear limb t anda corresponding tongue t 011 the forward limb if, having a boss i at itsforward corner, which forms a notch above the boss. Hinged to the tonguet by means of the pivot e is a bar or stop of spring metal 6 having itsfree end 6 shaped to conform to and fit around the boss i and in thenotch 25, as shown in Fig. 1. A thumb-piece or knob e is provided atthat end of the spring-stop on the outer side thereof for the purpose ofoperating the stop, and a segmental space 6 is cut in the upper edge ofthe stop to shape it to the stud a, against which it impinges when theslide is raised to the upper end of its throw.

In operation the spring-stop comprises a catch which engages the notch25 in the forward limb of the slide and can be sprung out and disengagedfrom the notch only by the application of force sul'licient to overcomeits resilience and deflect it from its normal straight form. This actionis illustrated in Fig. 7, in which the spring-stop is shown bent orsprung out from the notch and in position to be swung clear of the boss.When the spring-stop is engaged with the notch, it forms an end to theslot 25 and provides a barrier that insures the retention of the slidein its seat or guideway through its interception of the stud n in theoperation of elevating the sight. By being sprung out of the notch, asshown in Fig. 7, it can be swung down to the position shown in Fig. 5 torelease the slide, which may then be drawn upward out of the base andfree of the stud and the clamping nut and lever. The adjustment of thelatter is not afi'ected by this action, as it merelyrequires to beloosened sulliciently to free the slide of friction similarly as whenthe slide is being adjusted for sighting.

We claim and desire to secure by Letters Patent 1. In a sight forfirearms the combination of a base, a movable slide mounted on the baseand slotted in the direction of its ad justment for elevation, means forclamping the slide to the base through the slot, and a removable stopspanning the lower end of the slot and adapted to permit detachment ofthe slide from the base.

2. In a sight for firearms the combination of a base, a movable slidemounted on the base and forked or bifurcated from its lower edge in thedirection of its adjustment for elevation, a stud mounted on the basebe- I l I tween the respective limbs of the slide, clamping mechanismmounted on the stud for fastening the slide to the base, and a removablestop connecting the ends of the limbs of the slide and adapted to permitits detachment from the base without removal of the stud.

3. In a sight for firearms the combination of a base, a movable slidemounted on the base and slotted in the direction of its adjustment, ascrew-threaded stud fixed-in the base and projecting through the slot ofthe slide, a clamping-nut screwed on the stud for securing the slide tothe base, and a removable stop spanning the lower end of the slot andadapted to permit detachment of the slide from the base.

4. In a sight for firearms the combination of a base, a movable slidemounted on the base and forked or bifurcated from its lower .edge in thedirection of its adjustment for elevation, a stud mounted on the basebetween the respective limbs of the slide, clamping mechanism mounted onthe stud forfastening the slide to the base, and a removable stop hingedto one of the limbs of the slide and adapted to engage the opposite limbto connect the limbs but permit the 'detachment of the slide from thebase without removal of the stud.

5. In a sight for firearms, the combination of a base, a slide mountedon the base, a clamp to secure the base and slide together comprising amember that passes through a slot in one of said parts which extends inthe direction of movement of the slide, and a movable closure for theslot whereby the base and slide may be separated without dismantling theclamp.

6. In a sight for firearms, the combination of a base, a movable slidemounted on the.

base and slotted in the direction of its adjustment for elevation, meansfor clamping the slide to the base through the slot, a stop movable intoand out of a position crosswise of the slot, whereby the base and slidemay be separated without dismantling the clamp ing means.

Signed by us at Middlefield, Connecticut, this 28th day of December,1906.

JAMES W'INDRIDGE. GEORGE S. VVILCOX.

Witnesses as to the signature of James l/Vindridge GEORGE L. BARNE,GooDELL L. CooK.

Witnesses as to the signature of George S. lVilcoX:

ALFRED H. AUGUR, GORDON S. GOODRIOI-I.

